3L9V

Crystal Structure of Salmonella enterica serovar Typhimurium SrgA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.151 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural and functional characterization of three DsbA paralogues from Salmonella enterica serovar typhimurium

Heras, B.Totsika, M.Jarrott, R.Shouldice, S.R.Guncar, G.Achard, M.E.S.Wells, T.J.Argente, M.P.McEwan, A.G.Schembri, M.A.

(2010) J.Biol.Chem. 285: 18423-18432

  • DOI: 10.1074/jbc.M110.101360
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In prototypic Escherichia coli K-12 the introduction of disulfide bonds into folding proteins is mediated by the Dsb family of enzymes, primarily through the actions of the highly oxidizing protein EcDsbA. Homologues of the Dsb catalysts are found in ...

    In prototypic Escherichia coli K-12 the introduction of disulfide bonds into folding proteins is mediated by the Dsb family of enzymes, primarily through the actions of the highly oxidizing protein EcDsbA. Homologues of the Dsb catalysts are found in most bacteria. Interestingly, pathogens have developed distinct Dsb machineries that play a pivotal role in the biogenesis of virulence factors, hence contributing to their pathogenicity. Salmonella enterica serovar (sv.) Typhimurium encodes an extended number of sulfhydryl oxidases, namely SeDsbA, SeDsbL, and SeSrgA. Here we report a comprehensive analysis of the sv. Typhimurium thiol oxidative system through the structural and functional characterization of the three Salmonella DsbA paralogues. The three proteins share low sequence identity, which results in several unique three-dimensional characteristics, principally in areas involved in substrate binding and disulfide catalysis. Furthermore, the Salmonella DsbA-like proteins also have different redox properties. Whereas functional characterization revealed some degree of redundancy, the properties of SeDsbA, SeDsbL, and SeSrgA and their expression pattern in sv. Typhimurium indicate a diverse role for these enzymes in virulence.


    Organizational Affiliation

    Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia. b.heras@imb.uq.edu.au




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative thiol-disulfide isomerase or thioredoxin
A, B, C, D, E
189Salmonella typhimuriumMutation(s): 0 
Gene Names: srgA
Find proteins for Q04815 (Salmonella typhimurium)
Go to UniProtKB:  Q04815
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PE8
Query on PE8

Download SDF File 
Download CCD File 
A
3,6,9,12,15,18,21-HEPTAOXATRICOSANE-1,23-DIOL
C16 H34 O9
GLZWNFNQMJAZGY-UHFFFAOYSA-N
 Ligand Interaction
P6G
Query on P6G

Download SDF File 
Download CCD File 
E
HEXAETHYLENE GLYCOL
POLYETHYLENE GLYCOL PEG400
C12 H26 O7
IIRDTKBZINWQAW-UHFFFAOYSA-N
 Ligand Interaction
P4C
Query on P4C

Download SDF File 
Download CCD File 
C
O-ACETALDEHYDYL-HEXAETHYLENE GLYCOL
POLYETHYLENE 400
C14 H28 O8
CTLLATPOKUEFSQ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, E
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.151 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.213 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 185.445α = 90.00
b = 80.441β = 124.42
c = 104.953γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
PHENIXphasing
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
PHENIXrefinement
Blu-Icedata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-03-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-01
    Type: Advisory, Refinement description